Accession Number:

ADA495470

Title:

An Overview of GPS Augmentation Systems

Descriptive Note:

Briefing charts

Corporate Author:

CALGARY UNIV (ALBERTA) DEPT OF GEOMATICS ENGINEERING

Report Date:

1999-12-01

Pagination or Media Count:

14.0

Abstract:

The mature satellite-based navigation systems that are now available e.g., GPS have provided adequate positioning capability to users. However, their very success has been a driving force to increase accuracy, availability, reliability, and integrity requirements. As a result, several satellite augmentation systems have been or are in the process of being designed, developed, andor tested in order to meet the ever-demanding requirements. This paper will provide a summary of the current possibilities to improve GPS performance, namely the impact of the GPS modernization program itself, augmentation with the satellite-based GLONASS, WAAS, MSAS, and EGNOS systems, and augmentation with on-board aiding e.g., barometers and clocks. Performances are discussed as a function of user mask angle. The impact of combined GPSGALILEO is briefly addressed.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Navigation and Guidance
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE